Improvement in planing-machines



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FRANK DOUGLAS, on NORWTCH, CONNECTICUT.

Letters Pat'entNo. 106,139, dated August 9, 1870.

nvrrnovmvmw'r m PLANING-IMAO'HINES.

The lschedrfle referrer 11:0 in these LetteraPatent and making part of the same.

- LFRANK DOUGLAS, of Norwich, county of New London and State of Connecticut, have invented cer- 'tain' Improvements in Feed-Works for Wood-Blaning Machines, of which the following is aspecification. I i

The first part of myiinvention relates to a method of driving the feed-rolls, by which'a variety of changes in the feed, or in-the rapidity with which the work is fed to the cutter-heads, may be effected, without changingthe feed-belt The second part relates to the method of connecting the feed-rollshy expansion gearing, and their relation toeach other. i

The perspective view of a section of the machine showsall the parts so clearly that no other views are power to pulley E, which is tightly secured to the shaft, passing through long shaft F.

\ Pinion G is held on the endof the shaft by nut h.

The whole :power communicated 'to the feed-rolls .diate gear H.

"The long sleeve-box l is pivoted on pin I, through is transmittedfrom pinion G, through large intermethe arm of the box that extends up to clamping wheel or nut J. k y Any change of feed required is effected by removing pinion G, and placing a larger or smaller'pinion in its place.

A largevariety of feed can he thus effected, with unit any change in the feed-belt D.

To stop the feedkvhile the machine is running, the

tightening-arm and pulley Kisthrown down from the belt D by moving handleL up toward the machine, and by drawing the handle back from the machine,

the belt D is tightened tothegrequired tension.

The feed-roll shafts M are'geared both sides of the machine, and thefeed-rolls N N are attached to their overhanging ends.

The feed-shaft M is hung in arm-boxes 0-0, that are attached to the fixed shaft 1. v

, Shaft 1" is held to its place-by ears on each side of the machine, through whiclritpasses.

Yoke-Q, which forms the hearings for feed-shaft M, is made ot'a casting that extends across the'machine, audswings loosely on fixed. shaft 1, at one end, and

on the hub of arm Eat the other. i

It also forms a hood over driving-pinion s, and has a hearing for the feed-roll shaft between pinion s and the feed-roll. p

The. feed-roll in bed T, lying under roll.N,is driven by'pinious s s, through the pinion U,whicl1 turns vloosely on fixed-shaft P,;an d conveys the power to large expansion gear V, which acts as an intermediate to drive pinion M, which is firmly attached to the end of under feed-roll shaft. g i

' Expansion gear V is held in its proper place or relation to pinious U and W by arms It and X.

Arm X is fitted to theend of box for under feedroll at one end,and at the other has a pin that passes through'hub of expansion gear V, and receives the lower end of arm R, allowing gear V to turn freely on the pin between the arms.

J The upper end of arm R works loosely on fixed shaft I.

When the bed T is raised or lowered, arms Rand X hold gear V in its proper place'or relation to pinions U and W. I

The rolls N N are pressed down upon the stock to be workedby weight Y, that slides on lever 3, which is pivoted to the side .of frame A, at 4, and has a fulcrum over pin5, in cross-bar 6 6.

To bar 6 6 are attached the upright rods 7 7", one of which isattached to yoke Q, and the other to armO.

The end of lever 3 extends through the back of machine, for the operator to pressdown with his foot, when he wishes to raise the rolls for adjustment of work, 8m. I

' The operation of the parts are as follows:

When theoperator wishes to increase the speed of v the feed rolls, he turns the wheel or nut J, unolamping the arm of box'F, which allows pinion G to drop down out of gear.

Pinion G is then'removed, and one of a'larger size put in its place, when thepinion is again swung into gear, and locked by nut-wheel J. 7

When more or less weight is required on, the feedrolls,,weightis moved out or in on lever' 3, and when the weight should be relieved from the rolls, for the adjustment of work, 8m, the operator steps on lever 3', which raises the rolls, and allows him both hands for the removal of, the work or its adjustment.

Thebed is raised and lowered in the usual way.

Claim.

herein set forth.

FRANK DOUGLAS.

Witnesses:

ALBERT S. BOLLES, O. H. Donems. 

